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sunrpc: remove the big kernel lock

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The sunrpc cache_ioctl function does not need the big kernel lock
because it uses its own queue_lock already.

rpc_pipe_ioctl apparently should be using i_lock like the other
operations on the pipe file descriptor do.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2010-10-04 21:18:23 +02:00
parent 1fa4f3b57c
commit a6f8dbc654
2 changed files with 11 additions and 30 deletions
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15
net/sunrpc/cache.c
View file

@ -28,7 +28,6 @@
#include <linux/workqueue.h>
#include <linux/mutex.h>
#include <linux/pagemap.h>
#include <linux/smp_lock.h>
#include <asm/ioctls.h>
#include <linux/sunrpc/types.h>
#include <linux/sunrpc/cache.h>
@ -1348,15 +1347,10 @@ static unsigned int cache_poll_procfs(struct file *filp, poll_table *wait)
static long cache_ioctl_procfs(struct file *filp,
unsigned int cmd, unsigned long arg)
{
long ret;
struct inode *inode = filp->f_path.dentry->d_inode;
struct cache_detail *cd = PDE(inode)->data;
lock_kernel();
ret = cache_ioctl(inode, filp, cmd, arg, cd);
unlock_kernel();
return ret;
return cache_ioctl(inode, filp, cmd, arg, cd);
}
static int cache_open_procfs(struct inode *inode, struct file *filp)
@ -1555,13 +1549,8 @@ static long cache_ioctl_pipefs(struct file *filp,
{
struct inode *inode = filp->f_dentry->d_inode;
struct cache_detail *cd = RPC_I(inode)->private;
long ret;
lock_kernel();
ret = cache_ioctl(inode, filp, cmd, arg, cd);
unlock_kernel();
return ret;
return cache_ioctl(inode, filp, cmd, arg, cd);
}
static int cache_open_pipefs(struct inode *inode, struct file *filp)